@article{zu211401, title = {??????????? ??????? ?? ?? ??????????? ????????}, author = {?. ?. ???????}, publisher = {????? "????????"}, year = {2001}, pages = {56--59}, journal = {???????????? ?? ?????? ?????? ???????? ? ???????????}, url = {http://eprints.zu.edu.ua/11401/}, abstract = {????? ??????????? ? ???????? ???????? ?????? ????? ???????????? ?????? ? ??????????? ????, ??????? ?? ???????????? ????? ???????????? ? ??????????? ??????. ? ?????? ?????? ????????? ?? ?????????? ????????? ????? ?????? ???????.} }